Home / 8,761.32-13,120.58-4,604.78

Finding the Fourth Proportional to 8,761.32, 13,120.58 and 4,604.78

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Solution

The fourth proportional to 8,761.32, 13,120.58 and 4,604.78 is: 6,895.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.32 : 13,120.58 = 4,604.78 : x
  2. Step 2: Convert to fraction form
    8,761.32/13,120.58 = 4,604.78/x
  3. Step 3: Cross multiply
    8,761.32x = 13,120.58 × 4,604.78
  4. Step 4: Simplify right side
    8,761.32x = 60,417,384.37
  5. Step 5: Solve for x
    x = 60,417,384.37/8,761.32
  6. Step 6: Final answer
    x = 6,895.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.